Adjustable insulator support



May 19, 1931. F. A. CIRAOLO ET AL ADJUSTABLE INSULATOR SUPPORT Filed Nov. 7. 1927 '5 1 5 'hwu m L24 Patented May 19, 1931 UNITED STATES PATENT OFFICE FERDINAND A. CIRAOLO AND JOHN S. BASHER, OF OAKLAND, CALIFORNIA ADJUSTABLE INSULATOR' SUPPORT Application filed November 7, 1927. Serial No. 231,516.

The invention relates to a bracket particularly designed for the support of vapor-tubes used for lighting.

An object of; the invention isto provide a bracket of the class described which is adjustable in at least twodirections after it is secured in place. 7

Another object of the invention is to provide in a support for an insulator member arranged for a supporting engagement with a vapor tube, means independent of the insulator for effecting an adjustable positioning of the tube.

A further object of the invention is to provide a bracket of the class described in which the possible adjustments of relatively adjustable parts arerectilinear only.

The invention possesses' other objects and features of advantage, some of which, with the foregoing, will be set forth in the following description of a preferred form of the invention which is illustrated in the accompanying drawings, in which,

Figure 1 is a. face elevation of a bracket z5 embodying the invention mounted on a ver tical wall and supporting a light tube.

Figures 2 and 3 are end and plan views re spectively of the installation.

Figure dis a view showing the different =major elements of the bracket in'perspective,

and horizontally separated; and

Figure 5 is a view of a blank from which one of the bracket elements is arranged to be formed. 'As herewith particularly illustrated, the bracket of my invention comprises a base member 6, a member? arranged to directly and fixedly engage an insulator 8, and a member 9 arranged to be adjustably con- 401v nected to and between the sections 6 and 7. Each of the members 6, 7 and9 is preferably formed of a non-corroding and relatively stiff sheet material such as galvanized iron.

The base section 6, it will now be noted, is

formed with coterminous portions 11 and 12,

the former of which portions is perforated as at 13 for the reception of screws 14-, or the like, forsecuring the portion to and against a supporting surface 16. WVhen, as here shown, the surface 16 is vertical and gen-. erally parallel to a tube 17 which is to be supported by the bracket, the portions 11 and 12 are perpendicularly related whereby the portion 12 will extend perpendicularly out-' wardly from the surface 16. The opposite free edges 18 of'the portion 12 are bent perpendicularly from the latter to'extend there from in an opposite direction from that of the portion 11 and define a channel 19 of uniform width. i 4

The member 9 is formed with coterminous sections21 and 22 which are'perpendicular to each other. The section 21 has the opposite free edges 23 thereof parallel and is of a width topermit its slidable engagement in the channel 19 of the member 6. Means are provided for adjustably securing the section 21 of the member 9 in the channel 19, and as here shown, such means comprises a machine screw 24 disposed through registering perforations 26 and 27 provided respectively in the section 21 of the member 9 and the portion 12 of the member 6, one of said perforationscomprising a slot extending longitudinally of thechannel 19. As here shown, 73 the bolt 24 is threadedly engagedin the perforation 26, and the perforation 27 is formed .as a slot, whereby the portion 12 may be releasably and adjustably clamped between the bolt head and the section 21. In this manner, the permitted relative adjustment of the members 6 and 9 is purely rectilinear and the use of but a single bolt is required for effecting a setting of these members in fixed relation. The section 22 of the member 9, it is noted, is perpendicularly related to the channel 19 and is formed with a rearwardly offset portion 28 providing a channel 29 extending inwardly from the outer face of the section. The channel 29', it is noted, is of uniform width andextendsparallel to the line of juncture of the sections 21 and 22.

The member 7 is adapted to be adjustably mounted on the section 22 of the member. 9 and I is accordingly arranged to have a portion 31 thereof adjustably disposed and held in the channel 29 of the section whereby only a rectilinear adjustment thereof is permitted. A machine screw 32 is here shown provided for fixing the portion 31 to the section 22, suchscrew being disposed through registering perforations 33 and 34 provided respectively in the portion 31 of the member 7 and the offset portion 28 of the member 9, at least one of such perforations being in the form of aslot. As here shown, the perforation 34 comprises a slot, and the portions 31 and 28 are arranged to be clamped together between the screw head 36 and a nut 37 It will now be noted that the insulator 8 is arranged to extendgenerally outwardly from the member? and is preferably release ably secured thereto whereby it may be replaced in case of breakage, since such insulatorwould usually be formed of glass or porcelain and so would berelatively fragile.

Means are accordingly provided for effecting such releasable fixing of the insulator to the member 7, and when, as shown, the base of the insulator is cylindrical, such means comprises theforming of anintegral portion .38 of the. member to provide a socket 39 for the reception of the insulator base. Preferably,and as shown, the socket 39 is of adjustable size whereby insulatorshaving bases of different sizes may be mounted in the member 7 with equal facility, andmeans are provided for permitting such variations of the size of the socket. The'member 7, it

will now be noted, is formed of a blank 41 (see Figure 5) having a porton 31' thereof arranged to provide the portion 31 of the member and a portion 38 thereofcoterminous with and extending transversely across the portion 31 at an end of the forinerfor forming the socket 39. As here shown, parts 42 and 43 of the portion 38. extend generally oppositely from the partof portion 38 in line with the'portion 31, the part 42 having a transverse slot 42 adjacent the end thereof while the part 43 is shaped to provide a tongue for insertion in the slot 42.

parts 42 and 43 both tightly engage the insulator, the tongue 43 may be bent back upon.

itself to retain the insulator in gripped relation tothe member 7. Preferably, and as shown, a portion/44 of the edge of the blank portion 38 toward the portion 31 is shaped as a tongue extending laterally from the portion 38, and such tongue is arranged to be bent for disposal transversely of the portion 38 so that when the parts 42 and-43 are. disposed about the insulator base, it will provide a stop to limit the inward disposal of the insulator. I It will thus be clear that thepo-rtions 42, 43 and 44 of the blank are arranged to cooperate to define the socket 39. I Since the adjustmentof the positioningof the insulator in the directions is permitted by the bracket structure now described independently of the attachment of the insulator r to the bracket, danger of breaking an insulator is reduced to a minimum since no movementthereof in its mounting on the bracket portion 22 of the bracket member 9 and I against which the tube 17 is arranged to be secured as by a wire loop 48 Usually, and as,

shown, the bracket would be so disposed on a supporting member that independent adjust-. ments of. the positioning of the insulator are provided in a horizontal direction transversely of the. tubeand in a vertical direction as herewith particularly shown, the horizontal adjustment is provided between the members 6 and 9, while the vertical adj ustment is provided between the members 7 and 9.

YVe claim: a

1. In a support for a luminescent tube, an

insulator for fixed attachment to-said tube, an inner base member formed of sheet material and arranged for mounting on a supporting object to. have a portion thereof extending from said object, a longitudinal guideway defined in said extending base portion, by and between transversely turned edge portions thereof, an intermediate member formed of sheet material to have, a portion reciprocably engaged in said guideway and having asec- 0nd portion angularly related to said first portion thereof, a lateral guideway formed in said second portion of the intermediate member by offsetting a part thereof, an outer member adapted to supportedly engage the lnsulator and having a portion thereof en-.

gaging said last guideway for reciprocation therein, and means releasably securing the intermediate member to said other members in adj ustably set'relation thereto.

2. In a wall bracket for supporting a luminescent tube, an insulator, an inner one-piece base member of sheet material aranged for mounting on the wall to have an outer portion thereof extending transversely therefrom, an

tures.

FERDINAND A. CIRAOLO. JOHN S. BASHER. 

